Fixing an SSL error when using the Google Calendar API.

This change resolves the following error, though I'm not sure why I'm getting the error only on my Linux machine:

Traceback (most recent call last):
  File "./pancake.py", line 57, in <module>
    pm.update_calendar(updated, MARKET_TIMEZONE)
  File "/home/imnotbob/bin/lib/PancakeMaster.py", line 249, in update_calendar
    cal = GoogleCalendar(GOOGLE_CALENDAR_CREDENTIALS_FILE)
  File "/home/imnotbob/bin/lib/GoogleCalendar.py", line 23, in __init__
    self.service = discovery.build('calendar', 'v3', http=http)
  File "build/bdist.linux-i686/egg/oauth2client/util.py", line 132, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "build/bdist.linux-i686/egg/apiclient/discovery.py", line 192, in build
    resp, content = http.request(requested_url)
  File "build/bdist.linux-i686/egg/oauth2client/util.py", line 132, in positional_wrapper
    return wrapped(*args, **kwargs)
  File "build/bdist.linux-i686/egg/oauth2client/client.py", line 490, in new_request
    redirections, connection_type)
  File "/usr/local/lib/python2.7/site-packages/httplib2-0.8-py2.7.egg/httplib2/__init__.py", line 1570, in request
    (response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey)
  File "/usr/local/lib/python2.7/site-packages/httplib2-0.8-py2.7.egg/httplib2/__init__.py", line 1317, in _request
    (response, content) = self._conn_request(conn, request_uri, method, body, headers)
  File "/usr/local/lib/python2.7/site-packages/httplib2-0.8-py2.7.egg/httplib2/__init__.py", line 1252, in _conn_request
    conn.connect()
  File "/usr/local/lib/python2.7/site-packages/httplib2-0.8-py2.7.egg/httplib2/__init__.py", line 1027, in connect
    cert = self.sock.getpeercert()
  File "/usr/local/lib/python2.7/ssl.py", line 181, in getpeercert
    return self._sslobj.peer_certificate(binary_form)
SSLError: [Errno 218603680] _ssl.c:554: error:0D07A0A0:asn1 encoding routines:ASN1_mbstring_copy:unknown format